The Pinal County Sheriff's Office was looking for Aaron Nicholas Ryan, 34, and Rachel Faye Ryan, 36, in connection with the incident, which happened at a home near Tomahawk Road and the U.S. 60 at about 11 a.m.

The homeowner was present when two armed people entered the house, PCSO spokeswoman Navideh Forghani said. A struggle took place, and the homeowner fatally shot one of the people who had forced their way in, Forghani said.

It was not immediately clear how the Ryans were involved in the home invasion, nor how many others might have participated. There were additional witnesses inside the home at the time of the invasion, but they were not injured, officials said.

Both suspects are considered armed and dangerous, Forghani said. Anyone with information should call the Pinal County Sheriff's Office at 520-866-5111 instead of approaching the suspects directly.